Hex #991f11 or rgb(153,31,17) in RGB space is the tint of red. It has hue angle of 6.18 degrees, value = 60 and saturation = 89. #991f11 can be obtained by mixing 4 colors: 1 drop of yellow, 5 drops of red, 1 drop of blue, 3 drops of black.
Nearest safe hex - #993300. Below you can see the block with #991f11 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #991f11 to the mixer and play with it.